Comput. Biol. Med. - Retinal artery and venular caliber grading: a semi-automated evaluation tool.

Tópicos

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Resumo

Retinal imaging can facilitate the measurement and quantification of subtle variations and abnormalities in retinal vasculature. Retinal vascular imaging may thus offer potential as a noninvasive research tool to probe the role and pathophysiology of the microvasculature, and as a cardiovascular risk prediction tool. In order to perform this, an accurate method must be provided that is statistically sound and repeatable. This paper presents the methodology of such a system that assists physicians in measuring vessel caliber (i.e., diameters or width) from digitized fundus photographs. The system involves texture and edge information to measure and quantify vessel caliber. The graphical user interfaces are developed to allow retinal image graders to select individual vessel area that automatically returns the vessel calibers for noisy images. The accuracy of the method is validated using the measured caliber from graders and an existing method. The system provides very high accuracy vessel caliber measurement which is also reproducible with high consistency.

Resumo Limpo

retin imag can facilit measur quantif subtl variat abnorm retin vasculatur retin vascular imag may thus offer potenti noninvas research tool probe role pathophysiolog microvasculatur cardiovascular risk predict tool order perform accur method must provid statist sound repeat paper present methodolog system assist physician measur vessel calib ie diamet width digit fundus photograph system involv textur edg inform measur quantifi vessel calib graphic user interfac develop allow retin imag grader select individu vessel area automat return vessel calib noisi imag accuraci method valid use measur calib grader exist method system provid high accuraci vessel calib measur also reproduc high consist

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